Weft-fork for looms.



No. 825,004. PATBNTED JULY 3, 1906. E. PARKINSON.

WBPT PORK FOR LOOMS.

APPLICATION FILED DBO. 6. 1905.

WITN'E'EEEEL' INVZE'NTUH."

r11: mmms PETERS co., WASHINGTON, u. c

UNITED STATES PATENT OFFICE.

EDWARD PARKINSON, OF PROVIDENCE, RHODE ISLAND.

WEF-T-FORK FOR LOOMS.

Specification of Letters Patent.

I-atented July 3, 1906.

To all whom it may concern Be it known that I, EDWARD PARKINSON, a citizen of the United States, residing at Providence, in the county of Providence and 4 State of Rhode Island, have invented a new and useful Improvement in Weft-Forks for Looms, of which the following is a specification.

This invention has reference to an improvement in weft-forks used in Weft-threaddetector stop-motions for looms.

The object of my invention is to improve the construction of weft-forks for looms, thereby producing stronger, more durable, and more effective weft-forks than has heretofore been done.

A further object of my invention is to simplify the construction of weft-forks made of wire and sheet metal, thereby reducing the cost of manufacturing the same.

My invention consists in the peculiar and novel construction of a weft-fork, the shank of which is made of heavy sheet metal and the tines of wire, the wire tines being secured in the sheet-metal shank, as will be more fully set forth hereinafter.

Figure 1 is a face view of a blank stamped from heavy sheet metal, showing the first step in the formation of my improved weftfork. Fig. 2 is a face view looking at the under side and showing the second step in the formation of the weft-fork. Fig. 3 is a face view looking at the under side and showing the third step in the formation of the weftfork. Fig. 4 is a sectional view taken lengthwise through the completed weft-fork; and Fig. 5 is a detail sectional view looking at the under side and showing portions of the stem, tines, and the folded portion of the shank broken away.

In the drawings, a indicates the shank, b b the wire tines, and c the rivet, of my improved weftfork. The shank a is first stamped flat from heavy sheet metal to form the rectan ular body portion a with the rounded end a and the elongated narrow stem a as shown in Fig. 1. The body portion a, is now bent centrally on line X X of Fig. 1 and the half having the rounded end a folded partly over into the position as shown in Fig. 2. Holes (1 a for the wire tines b b are now drilled through the folded edge of the body portion a, as shown in Fig. 5. The wire tines b 6, having the curved inner ends 6 b, are now inserted through the holes a a and held with the curved ends between the folded body portion a, as shown in broken lines in Fig. 2 and in full lines in Fig. 5. A metal core in the form of a round bar is now placed transversely between the folded body portion a in a predetermined position and the whole placed in a die adapted to swage the body portion a This folds the half having the end a completely over, firmly embeds the curved ends I) b of the wire tines in the body portion a), and forms the transverse hub a with the hole a, as shown in Figs. 3 and 4, around the metal core. On removing the fork from the die the folded body portion a springs apart a suflicient distance to allow for the easy removal of the core. A hole a is now drilled through the end a and the stem a and the end secured to the stem by the rivet 0 throu h the hole as shown in Fig. 4. The hook a is now formed on the end of the stem (1 and the wire tines b b bent into the usual L-shaped form, as shown in Fig. 4. The weft-fork is pivotally supported by the hub 11 in its operative position in the weft-fork slide of a loom.

In the use of weft it has been found desirable to use wire for the tines and heavy sheet metal for the shank, thereby eliminating wear on the weft-thread and making the hook end of the shank as strong as possible to receive the blow of the weft-hammer. By the use of my improved construction the hub forming the pivot of the fork is formed integral with the sheet-metal shank and the wire tines are rigidly secured in the shank, thus forming a durable and efficient weft-fork at less cost than has heretofore been done.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A weft-fork consisting of a sheet-metal shank provided .with a body portion and wire tines, the wire tines being secured within a fold of the body portion, as described.

2. In a weft-fork, the combination with a sheet-metal shank having a hook-shaped end and a perforated folded body portion provided with a pivot-hole, and means for securing the two folds of the body portion together, of Wire tines the ends of which are secured within the folded body portion, substantially as described.

3. In a weft-fork, the combination with the shank a having the hooked end a and the folded perforated body portion a formed with the hole a, of the Wire tines b I) having the bent ends I) b, and the rivet c-for securname to this specification in the presence of two subscribing Witnesses.

EDWARD PARKINSON.

5 ing the folded portion of the body, as de- Witnesses:

scribed. ADA E. HAGERTY,

In testimony whereof I have signed my J. A. MILLER 

